Someone who is intrepid stays their course regardless of obstacles that arise. This bold adjective is a close synonym for fearless, but intrepid suggests a degree more resolve and daring. Adventurers, explorers, and travelers are all commonly described as intrepid; reporters, too, though not scaling mountains and traversing seas, are often described as intrepid, surmounting obstacles of a different variety. The phrase intrepid soul is used to refer to an individual who dares to do something to the surprise, delight, or admiration of others.
The verb invigorate is bursting with life! It means “to give vigor to” or “to fill with life and energy.” This animated term is similar to energize, but invigorate, drawing on vigor “vitality,” emphasizes healthy physical or mental energy or power. A brisk walk in mountain air will invigorate your senses; a fascinating conversation will invigorate your mind; and, applied a little more broadly, actions taken by a governing body, such as a city government, might invigorate a local economy.
The verb embroil is used to talk about involvements or entanglements of a particularly contentious or messy nature. If a person is embroiled in controversy, they are at the center of a bitter dispute or are deeply involved in a complex situation marked by discord and hostility. The more general verb involve is often used to talk about participation in something embarrassing or troublesome, but it does not convey the same degree of complication or strife.